REST – Daoyuan Li

Here are my notes on how to upgrade Tastypie from version 0.9.11 to 0.9.12, as there’re no release notes for v0.9.12. Release notes for 0.9.13 and above are available here: http://django-tastypie.readthedocs.org/en/latest/release_notes/index.html.

1. override_urls() becomes prepend_urls(), the new name makes more sense since what the function does is to insert customized urls instead of replacing the default urls with your customized urls.

2. obj_* methods accepts different parameters. Before:

def obj_get(self, request=None, **kwargs):
    pass

Now obj_get, obj_create, etc. accepts bundle as the parameter apart from keyword arguments. You can get request object from the bundle:

def obj_get(self, bundle, **kwargs):
    request = bundle.request
    pass

3. apply_authorization_limits is no longer in use and it’s replace with a finer grained authorization mechanism. For example:

from tastypie.authorization import Authorization
from tastypie.exceptions import Unauthorized

class ProgramAuthorization(Authorization):
    def read_list(self, object_list, bundle):
        user = bundle.request.user
        if user.is_authenticated() and user.is_staff:
            return object_list
        else:
            return object_list.filter(is_published=True)

    def read_detail(self, object_list, bundle):
        if bundle.request.user.is_staff or bundle.obj.is_published:
            return True
        raise Unauthorized()

    def create_list(self, object_list, bundle):
        raise Unauthorized()

    def create_detail(self, object_list, bundle):
        if bundle.request.user.is_staff:
            return True
        raise Unauthorized()

    def update_list(self, object_list, bundle):
        raise Unauthorized()

    def update_detail(self, object_list, bundle):
        if bundle.request.user.is_staff:
            return True
        raise Unauthorized()

    def delete_list(self, object_list, bundle):
        raise Unauthorized()

    def delete_detail(self, object_list, bundle):
        raise Unauthorized()

Please note that *_list methods should return a list or raise exceptions; whereas *_detail methods should return boolean values or raise exceptions. For more information, see: http://django-tastypie.readthedocs.org/en/v0.9.12/authorization.html

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Tag: REST

Upgrading Tastypie from v0.9.11 to v0.9.12 and above